Write a single register
int modbus_write_register(modbus_t *ctx, int addr, int value);
The modbus_write_register() function shall write the value of value holding registers at the address addr of the remote device.
The function uses the Modbus function code 0x06 (preset single register).
The modbus_write_register() function shall return 1 if successful. Otherwise it shall return -1 and set errno.
The libmodbus documentation was written by St\('ephane Raimbault <\m[blue][email protected]\m[]\s-2\u[1]\d\s+2>
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